Bocadillo de bonito del norte is a Spanish sandwich that consists of a hunk of bread filled with bonito del norte or white tuna fish, a variety of tuna that’s renowned for its excellent quality, flavor, and texture. To make this bocadillo sandwich variety, the most common choice of bread is a Spanish-style baguette called barra de pan.

The bread is typically sliced in half lengthwise before it is filled with canned tuna. The filling is often enhanced with the addition of pickled guindilla peppers and alioli (garlic mayonnaise). This simple sandwich is usually enjoyed as a filling mid-afternoon snack or a light meal for breakfast, lunch, or dinner.